BSides Austin Is on Hold

I feel like there is a missing backstory here. Why do they feel that some people aren't safe?

This lacks sufficient context.

https://bsidesaustin.com/about/

Has some context.

Bsides is a security conference for people who don't make it to Black Hat. The last Austin meeting was 2 days and 750 people.

I still don't know if the threat to attendees is because of enforcement violence, gun violence, car violence, or speech violence.